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solve the question and write the assumptions for me please . Question-3 A DC motor delivers mechanical power to a rotating stainless-steel shaft (k=15.1W/mK) with
solve the question and write the assumptions for me please .
Question-3 A DC motor delivers mechanical power to a rotating stainless-steel shaft (k=15.1W/mK) with a length of 25cm and a diameter of 25mm. In a surrounding with ambient air temperature of 20C and convection heat transfer coefficient of 25W/m2K, the surface area of the motor housing that is exposed to the ambient air is 0.075m2. The motor uses 300W of electrical power and delivers 55% of it as mechanical power to rotate the stainless-steel shaft. If the tip of the stainless-steel shaf has a temperature of 22C, determine the surface temperature of the motor housing. Assume the base temperature of the shaft is equal to the surface temperature of the motor housing Step by Step Solution
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